Reebok · Waterproof Sports & Performance Undergarments
Reebok Women's Air Tech Performance Brief Panties 6-Pack
Lower concern, no known PFAS triggers identified in basic apparel.
Basic nylon-spandex intimate apparel with no waterproof or stain-resist treatment disclosed. No lab data available, but no obvious PFAS risk factors present in standard athletic brief construction.
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Material
nylon, spandex, cotton blend
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
clothing is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
This brief combines nylon (synthetic polyamide), spandex (elastic polyurethane), and cotton in a blend typical of performance athletic underwear. Nylon itself is chemically stable in normal wear and wash conditions, though some nylon production may involve residual solvents. Spandex adds stretch without the direct chemical concerns of latex, and cotton provides breathability. The blend is designed for moisture-wicking in active use, which actually reduces prolonged moisture contact that can stress coatings or finishes.
The brand's record and disclosure
Reebok (Authentic Brands Group subsidiary) does not publish detailed chemical-content transparency reports for basic apparel lines and maintains a silent stance on PFAS use in textiles. The brand has faced no documented recalls or public safety alerts specific to underwear or intimate apparel. Reebok holds some sustainability certifications in other product lines but does not market this 6-pack with independent third-party chemical testing claims.
How it compares in its category
Intimate apparel in this price-performance tier typically uses the same nylon-spandex-cotton recipe without specialized coatings or treatments. Reebok's version is standard; it avoids the extra synthetic finishes (antimicrobial, flame-retardant) that add chemical complexity to some premium or specialty briefs. For basic athletic underwear, this material profile is neither notably safer nor riskier than direct competitors like Hanes, Fruit of the Loom, or CK performance lines.
If you buy it
Wash in warm water with standard detergent and dry on low or air-dry; nylon is durable but weakens slightly at sustained high heat. Replace when elastic loses snap or waistband rolls (typically 12-24 months of regular rotation). Do not use fabric softener, which can reduce elasticity and breathability. Store dry in a drawer away from direct sunlight to prevent gradual polyurethane (spandex) degradation from UV exposure.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Formaldehyde resins in fabric finishing
Cotton-blend textiles sometimes receive formaldehyde-based wrinkle-resist finishes or dyes fixatives. Reebok does not disclose finish chemistry for this 6-pack. Pre-wash in warm water before first wear reduces residual formaldehyde if present.
Azo dyes
Depending on color, some nylon-cotton blends use azo dyes in dyeing. These can break down into aromatic amines under stress or high heat. No specific recall or test data exists for this product; risk is typical for the category.
Antimony in polyester/spandex
This product uses nylon and spandex (polyurethane), not polyester, so antimony catalyst residues are not a relevant concern here.
Fragrance or contact sensitizers
No marketing claims of added fragrance, antimicrobial finish, or specialized coatings on this basic athletic brief. Standard product without known irritant additives.
Elastomer degradation (spandex breakdown)
Spandex deteriorates gradually from heat, UV light, chlorine, and sweat over 1-2 years. Proper care (cool wash, air dry, avoid direct sun storage) extends lifespan and avoids release of polyurethane degradation particles.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
More waterproof sports & performance undergarments grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.